Graphene nanoplatelets reinforced Mg matrix composite with enhanced mechanical properties by structure construction

被引：56

作者：

Meng, Linglong ^{[1
]}

Hu, Xiaoshi ^{[1
]}

Wang, Xiaojun ^{[1
]}

Zhang, Chunlei ^{[1
]}

Shi, Hailong ^{[1
]}

Xiang, Yeyang ^{[1
]}

Liu, Nanjia ^{[1
]}

Wu, Kun ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Heilongjiang, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2018年 / 733卷

基金：

中国国家自然科学基金;

关键词：

Magnesium; Graphene nanoplatelets; Layered structure; Fracture; Mechanical properties; CARBON NANOTUBES; TENSILE PROPERTIES; ALLOY COMPOSITES; MAGNESIUM; STRENGTH; MICROSTRUCTURE; DUCTILITY; NANOSHEETS; EXTRUSION; CNTS;

D O I：

10.1016/j.msea.2018.07.056

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Balanced strength and toughness are essential elements for application of metal matrix composites and can be realized through structure construction. In this work, graphene nanoplatelets (GNPs) reinforced magnesium laminated composites were fabricated. The composites with 0.25 vol% and 0,75 vol% GNPs exhibit tensile strength of 160 MPa and 179 MPa, respectively (136 MPa for pure Mg). Homogeneously dispersed GNPs promotes the load transfer capacity and constrains the transformation of Mg foils to monolithic materials. The induced laminated structure prohibits the dislocation motion and strengthens the composites. The prolonged crack pathway by laminated structure also maintains the elongation to an appreciable level.

引用

页码：414 / 418

页数：5

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